Impaired Water - Messenger Creek (Messenger Creek)
Oconto County, Wisconsin
GB08
518400
3.57 - 7.34
3.77
Water is impaired due to one or more pollutants and associated quality impacts.
Notes
This stretch of Messenger Creek evaluated every two-year cycle from 2016 to 2022; elevated temperature levels were identified in the 2016 cycle and confirmed in later cycles.

Assessments during the 2020 cycle showed new fish sample data were in good condition.
Listing Details
Pollutant
Unknown Pollutant
Listed For
Fish and Aquatic Life
Impairments
Elevated Water Temperature
Current Use
Unsupported Aquatic Life
Listing Status
303d Listed
Attainable Use
Coldwater - natural reproduction
Priority
Low
Designated Use
Coldwater - natural reproduction
303(d) ID
2018-210
Listing Date
4/1/2018
Impaired Water Notes
This water was assessed during the 2018 listing cycle; available temperature sample data exceed 2018 WisCALM listing criteria for the Fish and Aquatic Life use, however, available biological data do not indicate impairment (i.e. no fish Index of Biotic Integrity (IBI) scored in the "poor" condition category).
Date
7/31/2017

Impaired Water Notes
This water was assessed during the 2022 listing cycle; available temperature sample data exceed 2022 WisCALM listing criteria for the Fish and Aquatic Life.
Date
6/7/2021